Fix a file name typo

Fix a file name to be consistent with its class name and header file
name.

Review-Url: https://codereview.chromium.org/2215813003
diff --git a/BUILD.gn b/BUILD.gn
index 11b73b3..82850cc 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1158,7 +1158,7 @@
       "xfa/fwl/theme/cfwl_checkboxtp.h",
       "xfa/fwl/theme/cfwl_comboboxtp.cpp",
       "xfa/fwl/theme/cfwl_comboboxtp.h",
-      "xfa/fwl/theme/cfwl_datetimepickedtp.cpp",
+      "xfa/fwl/theme/cfwl_datetimepickertp.cpp",
       "xfa/fwl/theme/cfwl_datetimepickertp.h",
       "xfa/fwl/theme/cfwl_edittp.cpp",
       "xfa/fwl/theme/cfwl_edittp.h",
diff --git a/xfa.gyp b/xfa.gyp
index 7a79ae5..42013de 100644
--- a/xfa.gyp
+++ b/xfa.gyp
@@ -216,7 +216,7 @@
         "xfa/fwl/theme/cfwl_checkboxtp.h",
         "xfa/fwl/theme/cfwl_comboboxtp.cpp",
         "xfa/fwl/theme/cfwl_comboboxtp.h",
-        "xfa/fwl/theme/cfwl_datetimepickedtp.cpp",
+        "xfa/fwl/theme/cfwl_datetimepickertp.cpp",
         "xfa/fwl/theme/cfwl_datetimepickertp.h",
         "xfa/fwl/theme/cfwl_edittp.cpp",
         "xfa/fwl/theme/cfwl_edittp.h",
diff --git a/xfa/fwl/theme/cfwl_datetimepickedtp.cpp b/xfa/fwl/theme/cfwl_datetimepickertp.cpp
similarity index 100%
rename from xfa/fwl/theme/cfwl_datetimepickedtp.cpp
rename to xfa/fwl/theme/cfwl_datetimepickertp.cpp